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Finding the Fourth Proportional to 353,646, 488,080.89 and 226,592.24

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Solution

The fourth proportional to 353,646, 488,080.89 and 226,592.24 is: 312,728.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,646 : 488,080.89 = 226,592.24 : x
  2. Step 2: Convert to fraction form
    353,646/488,080.89 = 226,592.24/x
  3. Step 3: Cross multiply
    353,646x = 488,080.89 × 226,592.24
  4. Step 4: Simplify right side
    353,646x = 110,595,339,725.89
  5. Step 5: Solve for x
    x = 110,595,339,725.89/353,646
  6. Step 6: Final answer
    x = 312,728.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.